/* roulang page: index */
:root{
  --red:#E4443A;
  --red-dark:#B7302A;
  --green:#2E6B4F;
  --green-light:#DCEBE1;
  --bg:#FFF9F1;
  --sand:#F4E9DA;
  --ink:#1F1B18;
  --muted:#6E6357;
  --line:#EFE3D3;
  --yellow:#F6B93B;
  --radius:16px;
  --shadow:0 6px 18px rgba(31,27,24,.06);
  --shadow-lg:0 12px 30px rgba(31,27,24,.10);
}
*,*::before,*::after{box-sizing:border-box}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--ink);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button{font:inherit}
:focus-visible{outline:3px solid rgba(228,68,58,.3);outline-offset:2px;border-radius:8px}

.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.sec{padding:68px 0}
.sec-sand{background:var(--sand)}
.sec-head{max-width:720px;margin-bottom:32px}
.sec-head h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.35;letter-spacing:-.2px}
.sec-head p{margin-top:10px;font-size:14px;color:var(--muted)}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,249,241,.97);border-bottom:1px solid transparent;transition:box-shadow .2s,border-color .2s}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 2px 10px rgba(31,27,24,.06)}
.header-inner{height:64px;display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:.2px}
.brand-mark{width:32px;height:32px;flex:none;border-radius:10px;background:var(--red);color:#fff;display:grid;place-items:center;font-size:16px;font-weight:700}
.brand-name em{font-style:normal;color:var(--red);font-size:12px;font-weight:600;margin-left:5px;vertical-align:2px}
.nav-desktop{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-desktop a{padding:8px 12px;border-radius:10px;font-size:15px;color:var(--muted);transition:background .2s,color .2s}
.nav-desktop a:hover{color:var(--ink);background:var(--sand)}
.nav-desktop a.active{color:var(--red);font-weight:600}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;padding:13px 26px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-dark);transform:translateY(-1px);box-shadow:0 8px 20px rgba(228,68,58,.25)}
.btn-ghost{background:transparent;border-color:var(--green);color:var(--green)}
.btn-ghost:hover{background:var(--green-light)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px}

/* 徽标 */
.badge{display:inline-flex;align-items:center;border-radius:999px;font-size:11px;font-weight:600;padding:2px 9px;line-height:1.7;white-space:nowrap}
.badge-q{background:var(--green);color:#fff}
.badge-mg{position:absolute;top:10px;left:10px;background:var(--yellow);color:var(--ink);z-index:2}
.badge-cat{background:var(--green-light);color:var(--green)}

/* 首屏 */
.hero{position:relative;overflow:hidden;padding:60px 0 72px;background:url(/assets/images/backpic/back-1.jpg) center/cover no-repeat}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(255,249,241,.97) 0%,rgba(255,249,241,.93) 48%,rgba(255,249,241,.58) 100%)}
.hero .wrap{position:relative;z-index:1}
.hero-inner{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--green);background:var(--green-light);padding:4px 12px;border-radius:999px}
h1{margin-top:16px;font-size:clamp(30px,4.2vw,46px);line-height:1.2;font-weight:800;letter-spacing:-.6px}
h1 .hl{color:var(--red);position:relative;display:inline-block;padding-bottom:2px}
h1 .hl::after{content:"";position:absolute;left:-2px;right:-2px;bottom:0;height:7px;border-radius:4px;background:rgba(246,185,59,.55)}
.hero-sub{margin-top:16px;font-size:17px;font-weight:600}
.hero-desc{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.8;max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-facts{display:flex;flex-wrap:wrap;gap:28px;margin-top:30px}
.hero-facts li{display:flex;flex-direction:column}
.hero-facts strong{font-size:22px;font-weight:800;color:var(--red);line-height:1.2}
.hero-facts span{font-size:13px;color:var(--muted)}
.hero-stack{position:relative;height:360px}
.hero-stack img{position:absolute;width:46%;aspect-ratio:3/4;object-fit:cover;border-radius:14px;border:4px solid #fff;box-shadow:0 14px 34px rgba(31,27,24,.16)}
.hs-a{left:0;top:44px;transform:rotate(-4deg)}
.hs-b{left:27%;top:0;transform:rotate(1deg);z-index:3}
.hs-c{right:0;top:52px;transform:rotate(4deg)}

/* 网格 */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}

/* 竖版剧卡 */
.v-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;height:100%;transition:transform .25s,box-shadow .25s,border-color .25s}
.v-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(228,68,58,.4)}
.v-card .thumb{position:relative;aspect-ratio:3/4;overflow:hidden;background:var(--sand)}
.v-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s}
.v-card:hover .thumb img{transform:scale(1.03)}
.v-card .body{padding:12px 14px 15px}
.v-card h3{font-size:16px;font-weight:600;line-height:1.4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.v-card .meta{display:flex;align-items:center;gap:7px;margin-top:7px;font-size:12px;color:var(--muted)}

/* 最新更新卡 */
.n-card{background:#fff;border:1px solid var(--line);border-left:4px solid var(--red);border-radius:var(--radius);overflow:hidden;height:100%;transition:transform .25s,box-shadow .25s,border-color .25s}
.n-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.n-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--sand)}
.n-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s}
.n-card:hover .thumb img{transform:scale(1.03)}
.n-card .body{padding:12px 16px 16px}
.n-card h3{font-size:16px;font-weight:600;line-height:1.45;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.n-card .prog{margin-top:6px;font-size:13px;color:var(--green);font-weight:600}
.n-card .date{margin-top:2px;font-size:12px;color:var(--muted)}

/* 痛点 */
.pain-list{display:grid;gap:16px}
.pain-list li{display:flex;gap:22px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px}
.pain-list .num{flex:none;font-size:34px;font-weight:800;line-height:1;color:var(--red);opacity:.8;font-variant-numeric:tabular-nums}
.pain-list h3{font-size:17px;font-weight:600;margin-bottom:6px}
.pain-list p{font-size:14px;color:var(--muted)}

/* 解决方案 */
.sol{display:grid;grid-template-columns:.75fr 1.25fr;gap:48px;align-items:start}
.sol-left h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.35}
.sol-left p{margin-top:12px;font-size:14px;color:var(--muted)}
.sol-list li{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px}
.sol-list li+li{margin-top:14px}
.sol-tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;color:var(--green);background:var(--green-light);border-radius:8px;padding:3px 9px}
.sol-list h3{font-size:17px;font-weight:600;margin-top:10px}
.sol-list p{font-size:14px;color:var(--muted);margin-top:6px}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.steps li{position:relative;padding-top:40px}
.steps li::before{content:"";position:absolute;top:11px;left:28px;right:-22px;border-top:2px dashed #E5CFAF}
.steps li:last-child::before{display:none}
.step-dot{position:absolute;top:0;left:0;width:24px;height:24px;border-radius:50%;background:var(--yellow);color:var(--ink);font-size:12px;font-weight:700;display:grid;place-items:center}
.steps h3{font-size:16px;font-weight:600;margin-bottom:6px}
.steps p{font-size:14px;color:var(--muted)}

/* 分类频道 */
.chan-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:minmax(108px,auto);gap:16px}
.chan-grid li{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s,border-color .25s}
.chan-grid li:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(228,68,58,.4)}
.chan-grid li.big{grid-column:span 2;grid-row:span 2}
.chan-grid h3{font-size:17px;font-weight:600}
.chan-grid p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.7}
.chan-grid li.big p{font-size:15px}
.chan-link{margin-top:auto;padding-top:14px;font-size:13px;font-weight:600;color:var(--red)}
.chan-link:hover{color:var(--red-dark)}

/* 播放榜 */
.rank-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;counter-reset:rk}
.rank-list li{counter-increment:rk;display:flex;align-items:center;gap:14px;height:56px;padding:0 18px;border-bottom:1px solid #F6EEE3;transition:background .2s,padding .2s}
.rank-list li:last-child{border-bottom:none}
.rank-list li:nth-child(even){background:#FFFCF7}
.rank-list li:hover{background:#F9F0E4;padding-left:26px}
.rank-list li::before{content:counter(rk,decimal-leading-zero);flex:none;font-size:14px;font-weight:800;color:#BFB3A5;font-variant-numeric:tabular-nums}
.rank-list li:nth-child(-n+3)::before{color:#fff;background:var(--red);width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:11px;box-shadow:0 0 0 3px rgba(246,185,59,.35)}
.rank-list li:nth-child(1)::before{background:#B7302A}
.rank-list li:nth-child(2)::before{background:#D03A30}
.rank-list .rt{flex:1;min-width:0;font-size:15px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-list .rv{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}

/* 成果数据 */
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.res-grid li{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 22px;text-align:center}
.res-num{font-size:44px;font-weight:800;line-height:1;color:var(--red);font-variant-numeric:tabular-nums}
.res-label{margin-top:10px;font-size:14px;color:var(--muted)}

/* 专题合集 */
.t-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;height:100%;transition:transform .25s,box-shadow .25s,border-color .25s}
.t-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(228,68,58,.4)}
.t-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--sand)}
.t-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s}
.t-card:hover .thumb img{transform:scale(1.03)}
.t-card .body{padding:14px 16px 16px}
.t-card h3{font-size:16px;font-weight:600;line-height:1.45}
.t-card .cnt{margin-top:6px;font-size:13px;color:var(--muted)}
.t-card .go{display:inline-block;margin-top:10px;font-size:13px;font-weight:600;color:var(--red)}
.t-card .go:hover{color:var(--red-dark)}

/* 观众留言 */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.voice{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px 22px}
.voice::before{content:"“";position:absolute;top:2px;right:20px;font-size:56px;line-height:1;color:var(--sand);font-family:Georgia,serif}
.voice p{position:relative;font-size:15px;line-height:1.8}
.voice .who{margin-top:14px;font-size:13px;color:var(--muted)}
.voice .who strong{color:var(--ink);font-weight:600}

/* 适用人群 */
.aud-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.aud-grid li{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px}
.aud-ico{flex:none;width:40px;height:40px;border-radius:12px;background:var(--green-light);color:var(--green);display:grid;place-items:center}
.aud-grid h3{font-size:16px;font-weight:600}
.aud-grid p{margin-top:4px;font-size:14px;color:var(--muted)}

/* 资讯 */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 32px}
.news-item{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.news-item img{flex:none;width:120px;height:80px;object-fit:cover;border-radius:10px;background:var(--sand)}
.news-item h3{flex:1;font-size:15px;font-weight:600;line-height:1.5}
.news-item h3:hover{color:var(--red)}
.news-item time{flex:none;font-size:12px;color:#A79887;font-variant-numeric:tabular-nums}

/* 数据指标 */
.metrics{background:var(--sand);padding:36px 0}
.met-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.met-num{font-size:30px;font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums}
.met-num em{font-style:normal;color:var(--red)}
.met-label{margin-top:4px;font-size:13px;color:var(--muted)}

/* 常见问答 */
.faq{max-width:840px;margin:0 auto;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:18px 0}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary h3{font-size:17px;font-weight:600;line-height:1.6}
.faq summary::after{content:"+";flex:none;margin-top:1px;font-size:22px;line-height:1;color:var(--red);transition:transform .25s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:10px 40px 2px 0;font-size:15px;line-height:1.85;color:var(--muted)}

/* 结尾行动区 */
.cta-band{background:linear-gradient(180deg,var(--sand) 0%,#F7EEDF 100%);padding:56px 0;text-align:center}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);font-weight:800;line-height:1.35}
.cta-band p{margin-top:12px;font-size:15px;color:var(--muted)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:26px}

/* 页脚 */
.site-footer{background:#1F1B18;color:#D5CBC0;font-size:14px;padding-top:52px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.site-footer .brand{color:#fff}
.site-footer .brand-name em{color:var(--yellow)}
.foot-desc{margin-top:14px;font-size:14px;line-height:1.8;color:#A99D91;max-width:30em}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:12px}
.site-footer a{display:block;padding:5px 0;color:#C6BAAE;transition:color .2s}
.site-footer a:hover{color:var(--yellow)}
.foot-bottom{margin-top:40px;border-top:1px solid #3A332D;padding:18px 0 22px;font-size:13px;color:#94887C;text-align:center;line-height:1.9}

/* 移动端底部 Tab */
.tabbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;border-top:1px solid var(--line);border-radius:8px 8px 0 0;box-shadow:0 -2px 12px rgba(31,27,24,.06);padding-bottom:env(safe-area-inset-bottom)}
.tabbar ul{display:grid;grid-template-columns:repeat(5,1fr);height:60px}
.tabbar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:11px;color:var(--muted)}
.tabbar svg{width:22px;height:22px}
.tabbar a.on{color:var(--red)}

@media (max-width:1024px){
  .sec{padding:56px 0}
  .hero{padding:48px 0 56px}
  .hero-inner{grid-template-columns:1fr .8fr;gap:32px}
  .hero-stack{height:300px}
  .grid-4{grid-template-columns:repeat(3,1fr);gap:18px}
  .grid-3{grid-template-columns:repeat(2,1fr);gap:18px}
  .steps{grid-template-columns:repeat(2,1fr);gap:26px 22px}
  .steps li:nth-child(2)::before{display:none}
  .sol{grid-template-columns:1fr;gap:26px}
  .chan-grid{grid-template-columns:repeat(2,1fr)}
  .chan-grid li.big{grid-column:span 2;grid-row:span 1}
  .res-num{font-size:38px}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media (max-width:768px){
  .wrap{padding:0 16px}
  .sec{padding:44px 0}
  body{padding-bottom:calc(60px + env(safe-area-inset-bottom))}
  .nav-desktop,.head-cta{display:none}
  .brand{font-size:16px}
  .brand-name em{display:none}
  .tabbar{display:block}
  .hero{padding:36px 0 44px}
  .hero-inner{grid-template-columns:1fr;gap:30px}
  h1{font-size:clamp(30px,8vw,36px)}
  .hero-stack{height:0;padding-bottom:74%;position:relative}
  .hero-stack img{width:42%}
  .hs-a{top:16px}
  .hs-c{top:24px}
  .hero-actions .btn{flex:1;min-width:150px}
  .hero-facts{gap:20px}
  .grid-4{grid-template-columns:repeat(2,1fr);gap:16px}
  .grid-3{grid-template-columns:repeat(2,1fr);gap:16px}
  .v-card h3{font-size:15px}
  .pain-list li{flex-direction:row;gap:16px;padding:18px}
  .pain-list .num{font-size:28px}
  .steps{grid-template-columns:1fr;gap:24px}
  .steps li{padding-top:34px;padding-left:36px}
  .steps li::before{top:0;bottom:0;left:11px;right:auto;border-top:0;border-left:2px dashed #E5CFAF}
  .steps li:last-child::before{display:none}
  .step-dot{top:0;left:0}
  .res-grid{grid-template-columns:1fr;gap:14px}
  .res-grid li{padding:22px}
  .res-num{font-size:34px}
  .voice-grid{grid-template-columns:1fr;gap:14px}
  .aud-grid{grid-template-columns:1fr;gap:14px}
  .news-grid{grid-template-columns:1fr}
  .news-item img{width:96px;height:64px}
  .met-grid{grid-template-columns:repeat(2,1fr);gap:22px 12px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
  .foot-desc{grid-column:1 / -1}
  .cta-actions .btn{flex:1;min-width:150px}
}
@media (max-width:520px){
  .grid-3{grid-template-columns:1fr}
  .grid-4{gap:14px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .rank-list li{height:52px;padding:0 14px;gap:10px}
  .rank-list .rt{font-size:14px}
  .rank-list .rv{display:none}
  .chan-grid{grid-template-columns:1fr}
  .chan-grid li.big{grid-column:span 1}
  .faq-body{padding-right:12px}
  .aud-grid li{padding:16px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}